First Glider Flight Wien Semmering 1933: Air Mal Postal Card.

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Air mail „ Erster Segelflug Wien Semmering 1933“.
 
12 Groschen postag card upfranked with a 50 Groschen stamp. Graz, 14. 1. 33 –cancellations.
 
1.   Oesterr. Segel-Flugpost Wien Semmering Jaenner 1933 – commemorative strike.
Fine condition.